55315105140 has 24 divisors (see below), whose sum is σ = 154882294560. Its totient is φ = 14750694688.

The previous prime is 55315105127. The next prime is 55315105147. The reversal of 55315105140 is 4150151355.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 55315105098 and 55315105107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55315105147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460959150 + ... + 460959269.

It is an arithmetic number, because the mean of its divisors is an integer number (6453428940).

Almost surely, 2^55315105140 is an apocalyptic number.

It is an amenable number.

55315105140 is an abundant number, since it is smaller than the sum of its proper divisors (99567189420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55315105140 is a wasteful number, since it uses less digits than its factorization.

55315105140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921918431 (or 921918429 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

Adding to 55315105140 its reverse (4150151355), we get a palindrome (59465256495).

The spelling of 55315105140 in words is "fifty-five billion, three hundred fifteen million, one hundred five thousand, one hundred forty".